Visionograph record and method of making the same



May 26, 1931. c. E. ALBERT! 1,807,270

YISIONOGRAPH RECORD AND METHOD OF MAKING-THE SAME Original Filed Aug. 131923 29 22425 45 40 I 49 31 qi 12 INVENTOR ATTORNEYS I Patented May 26,1931 UNITED (STATES- PATENT OFFICE mamas EMANUEL ALIBEBTI, OF CHICAGO,ILLINOIS VISIONOGRAPH RECORD AND METHOD OI BAKING In sum- Applicationfiled August 18, 1928, Serial No. 299,408. Renewed October 84, 1980.

My invention relates to visionograph records and methods of makinthe'same, and it consists in the steps hereina -ter described and thecombinations, constructions, and arrangements herein described andclaimed.

An object of my invention is to provide a visionograph recor'dof a typewhereby imducing an image and a record prepared for reproducinsound,'and in which the production of t e two records may be performedsynchronicallyh A further'object is to provide a method whereby a singlerecord or a plurality of records may be produced adapted to reproduceimages and sound s nchronically.

Other objects an advantages will appear in the following specificationand the novel features of the mventionwillbe particularly pointed out inthe appended claims.

- My invention is illustrated in the accompanying drawings, forming partof this application, in which Figure 1 is a diagrammatic view embodyingt e structure employed in my method for preiaparing a visionographrecord,

igure 2 is a plan View of a scanning disc, Figure 3 is a top plan viewof a portion of the structure shown in Figure 1,

Fi re 4 is a view of a sin is record prepare to reproduce sound and imaes,

Figure 5 1s a view showing a furt er modification of the record shown inFigure 4, and Figure 6 is an enlarged sectional detail view showing afurther modification of my record.

In carr ing out my invention, I make use of a main s aft 1 having a gear2 operatively disposed with respect'to a gear 3 mounted upon a shaft 4associated with a motor 5. The shaft 1 is provided with a'pair of bevelgears 6 and 7 and a smaller bevel ear 8. Any suitable means may be provied for rotatably mounting the shaft 1. Y

Ascannin disc 9 is secured to the shaft 1 and is PIOVldGd with aplurality of small openings 10' disposed in a s iral path near re 2. The

the outer edge, as shown in i disc may or may not be provide withlenses.

A platform 11 is positioned in operative relation with respect to theshaft 1, as shown in Figure 1. Turntables 12 and 13 are mounted upon theplatform and. are operatively connected with'shafts 14 and15,'respectively. The shafts 14 and 15 are provided with bevel gears 16and 17 disposed ln'operative engagement with the bevel gears 6 and 7,respectively. The bevel gear 8 is operatively connected with a bevelgear 18 associated with a governor 19. The gear 18 is mounted upon a'means 22 toward or away from the disc 21.

Suitable arms 25 and 26 are pivotally mounted. at 27 upon the platform11. Each of the arms is provided with a suitable recorder 28 and 29 ofthe electromagnetic type. The

shaft 20 havin a movable disc 21 disposed recorders 28 and'29 areprovided with needles 30 and 31, respectively.

A photo-cell 32 is disposed relatively close to the scanning disc 9 ando posite the path of the openings 10. A con uctor 33 electricallyconnects the photo-cell with an amplifier 34, and a conductor 35connects the amplifier with the recorder 28. A conductor 36 leads fromthe recorder 28 to a source of current 37. The photo-cell 32 iselectrically connected with the source of current 37 by means of aconductor 38.

The recorder 29 is provided with a conductor 39 connected with a sourceof current 40. A conductor 41. electrically connects a microphone 42. Aconductor 43 leads from the microphone 42 to an amplifier44,thelatterbeing electrically connected with the recorder 29 by meansof a conductor 45. A suitable lens 4 6 is disposed near the scanningdisc 9 and upon that side opposite the photo-cell 32. l

The lens'46 is adapted to focus light rays from an optical image 47.

From the foregoing description of the varirotates the shaft 1 and thescannin disc 9 at a relatively high rate of speed. otation of the shaft1 rotates the shafts 14 and 15 of the turntables 12 and 13. I Records 48and 49 are placed u on the turntables 12 and 13, respectively. uring therotation of the scanning disc, the openings 10 will pass through a planeintersecting the image projected upon the edge of the disc by the lens-46. As the openings ass across the projected image, light wi 1 passthrough the o enings in accordance with the intensity of the light inthe cross section of the ima e. The li ht passing through the openingsfa ls upon the photo-cell 32 or any suitable means. Since the lightwhich passes through the openings will vary in accordance with theintensity of the light in the path of the projected image, it will beseen that the light falling upon the photocell or any other suitablemeans will cause a greater or less amount of electricity to flow throughthe photo-cell. The variation of the current b reason of the photo-cellwill cause electrical lmpulses which result in actuatin the needle 30.The movement of the needle will cause undulations to be formed withinthegroove of the record. The records 48 and 49 rotate at the same speed.This is easily attained by providing are 6 and 16 of the same ratio asthe gears g9 and 17. The ratio between the re 6 and 16 and 7 and 17 maybe change to attain any desired speed for the records. In referring toFi ure 1, it .will be seen that sound may be recorded upon the record 49through the microphone 42. It is thus possible to chronize thevisionograph record 48 and t e record 49. The visionograph record 48,

see Fi re 3 is provided with an o ning d the i'ecord 49 is provided wish an opening 51. The 0 enin permit the two records to be place in teir same relative positions when reproducing as during the process ofrecording. a up In Figure 4 I have shown a record 52 having parallelgrooves-53 and 54. One of the ooves comprises the image hndulations, andt e other groove the sound undulations.

; Such a record is easily prepared by lproviding a pair of recordersplaced side side.

In Figure 5 I have shown a record ivided.

into two portions 55 and 56. In this record the ima e undulations may beformed in the face of t e portion 56 and the sound undulations in theface of the portion 55.

In'Figure 6 I have shown a further modification of a record in which agroove 57 is provided in the bottom of the groove 58. In this form, theimage undulations may be formed in the groove 58, and the soundundulations in the groove 57, or vice versa. Such a record is formed byplacing one recorder before the other. c

While I have defined in detail the prefilaraw be 'tion of myvi'sionograph record, it

seen that when once a record has been prepared, an image may bereproduced by reversing the process; that is to say, by 1placing aprepared record upon the turntab e 12. The undulations within the grooveof the record imparted to the needle will be changed into electricalimpulses by means of a device such as is used in phonograph electricpick ups. The variable electric current thus produced is amplified, and,by the provision of suitable apparatus, such as that used in atelevision receiver, a source of light will be caused to vary inintensity. The fluctuation of the light caused by the variable flow whenlooked at through a scannin disc will 've to the eye a reproduction of te image. t is of course necessary that the scanning disc and the recordrevolve at the'same ratio of s eed as that used during the production oft e record. While I have defined specifically the scanning disc 9, itwill be understood that various devices may beemplo ed such as anendless film-like member, an other moving members.

I claim:

1. A device of the type described comprising a rotatable shaft, 2. discsecured to the shaft and having a plurality of ope arranged in the formof a spiral, a plurahty of sha s o eratively connected with saidrotatable sliaft, a turntable carried by each of said plurality ofshafts, a record disposed upon each of the turntables, means forprojecting an image of a distant scene upon that portion of the ischaving the openings there- 1n, the rays of light from said image assingthrough the openings in the disc w en the latter is rotating insubstantiall a continuous beam, li ht-sensitive-electricafiy controlledmeans a apted to vary electric current in proportion to the lightpassing through the openings, means associated with said lightsensitiveelectrically controlled means for forming undulations in one of saidrecords, and sound-sensitive means associated with the other of saidrecords for forming undulations therein. v

2. A device of the type described comprising a rotatable shaft, a discsecured to the shaft and having a plurality of openings arra d in theform ofaspiral, a plurality of she o eratively connected withsaid-rotatable s aft, a turntable carried by each of said plurali ofshafts, a record disposed upon each 0 the turntables, means for provopenings, means associated with said lightsensitive electricallycontrolled means for forming undulations in one of said records,sound-sensitive means associated with the other of said records forformin undulations therein and means 0 rative y connected with saidrotatable sha t for attaining a uniform speed.

3. A device of the type described comprism ing a rotatable shaft, meansactuated by said shaft and having a plurality of openings therein, alurality of shaftsoperatively connected wit said rotatable shaft, aturntable operatively connected with each of said plu- 15 rality ofshafts, means for projecting an ima e of a distant scene upon thatportion of t e first-named means having the openings therein, the raysof light from said image passing through the openings in said g-first-named means when the latter is moving, a record disposed uponeach of said turntables, an electrically sensitive recorder associatedwith each of the records, lightsensitive electrically controlled meansadapted to vary electric current in proportion to the light (passingthrou h said openings and associate with one- 0 said recorders forforming undulations in one of the records, and round-sensitive meansassociated with so the other of said recorders for forming undulationsin the record associated therewith.

4. A device of the type described comprising a rotatable shaftoperatively connected with a power unit, a disc secured to the shaft :5and having a plurality of openings arranged in the form 0 a spiral, apair of shafts having gear connections with said rotatable shaft, aturntable associated with each of said shafts, a record disposed uponeach of 40 the turntables, an electrically sensitive recorder associatedwith each of said records, means for projecting an ima of a distantscene upon that portion of sai disc rovided with the openin s, the raysof light om said 45 image passing t rough the openings in said disc whenthe latter is moving, light-sensitive electrically controlled meansadapted to vary electric current in' proportion to the light passingthrough said ope sand assol0 ciated with one of said recor ers forform'- ing undulations in one'of the records, and sound-sensitiveelectrically controlled means associated with the other of saidrecorders for forming undulations in the record assoll ciated therewith,said turntables. bemfiiarchronism wi 'ranged'to be'moved in respect toeach other and m.synchronism with Si ed at inthe count an and tate ofIllino1a,thie as day. of August,

A. D .1928.m CHARLES EMANUELALBEBTI'.

